From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: "James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Kees Cook <keescook@chromium.org>
Subject: [PATCH] scsi: qlogicpti: Mark expected switch fall-throughs
Date: Mon, 29 Jul 2019 06:03:45 -0500 [thread overview]
Message-ID: <20190729110345.GA2603@embeddedor> (raw)
Mark switch cases where we are expecting to fall through.
This patch fixes the following warnings (Building: sparc defconfig):
drivers/scsi/qlogicpti.c: In function 'qlogicpti_mbox_command':
drivers/scsi/qlogicpti.c:202:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 6: sbus_writew(param[5], qpti->qregs + MBOX5);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:203:2: note: here
case 5: sbus_writew(param[4], qpti->qregs + MBOX4);
^~~~
drivers/scsi/qlogicpti.c:203:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 5: sbus_writew(param[4], qpti->qregs + MBOX4);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:204:2: note: here
case 4: sbus_writew(param[3], qpti->qregs + MBOX3);
^~~~
drivers/scsi/qlogicpti.c:204:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 4: sbus_writew(param[3], qpti->qregs + MBOX3);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:205:2: note: here
case 3: sbus_writew(param[2], qpti->qregs + MBOX2);
^~~~
drivers/scsi/qlogicpti.c:205:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 3: sbus_writew(param[2], qpti->qregs + MBOX2);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:206:2: note: here
case 2: sbus_writew(param[1], qpti->qregs + MBOX1);
^~~~
drivers/scsi/qlogicpti.c:206:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 2: sbus_writew(param[1], qpti->qregs + MBOX1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:207:2: note: here
case 1: sbus_writew(param[0], qpti->qregs + MBOX0);
^~~~
drivers/scsi/qlogicpti.c:256:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 6: param[5] = sbus_readw(qpti->qregs + MBOX5);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:257:2: note: here
case 5: param[4] = sbus_readw(qpti->qregs + MBOX4);
^~~~
drivers/scsi/qlogicpti.c:257:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 5: param[4] = sbus_readw(qpti->qregs + MBOX4);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:258:2: note: here
case 4: param[3] = sbus_readw(qpti->qregs + MBOX3);
^~~~
drivers/scsi/qlogicpti.c:258:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 4: param[3] = sbus_readw(qpti->qregs + MBOX3);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:259:2: note: here
case 3: param[2] = sbus_readw(qpti->qregs + MBOX2);
^~~~
drivers/scsi/qlogicpti.c:259:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 3: param[2] = sbus_readw(qpti->qregs + MBOX2);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:260:2: note: here
case 2: param[1] = sbus_readw(qpti->qregs + MBOX1);
^~~~
drivers/scsi/qlogicpti.c:260:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 2: param[1] = sbus_readw(qpti->qregs + MBOX1);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:261:2: note: here
case 1: param[0] = sbus_readw(qpti->qregs + MBOX0);
^~~~
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/scsi/qlogicpti.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index 9335849f6bea..d539beef3ce8 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -200,10 +200,15 @@ static int qlogicpti_mbox_command(struct qlogicpti *qpti, u_short param[], int f
/* Write mailbox command registers. */
switch (mbox_param[param[0]] >> 4) {
case 6: sbus_writew(param[5], qpti->qregs + MBOX5);
+ /* Fall through */
case 5: sbus_writew(param[4], qpti->qregs + MBOX4);
+ /* Fall through */
case 4: sbus_writew(param[3], qpti->qregs + MBOX3);
+ /* Fall through */
case 3: sbus_writew(param[2], qpti->qregs + MBOX2);
+ /* Fall through */
case 2: sbus_writew(param[1], qpti->qregs + MBOX1);
+ /* Fall through */
case 1: sbus_writew(param[0], qpti->qregs + MBOX0);
}
@@ -254,10 +259,15 @@ static int qlogicpti_mbox_command(struct qlogicpti *qpti, u_short param[], int f
/* Read back output parameters. */
switch (mbox_param[param[0]] & 0xf) {
case 6: param[5] = sbus_readw(qpti->qregs + MBOX5);
+ /* Fall through */
case 5: param[4] = sbus_readw(qpti->qregs + MBOX4);
+ /* Fall through */
case 4: param[3] = sbus_readw(qpti->qregs + MBOX3);
+ /* Fall through */
case 3: param[2] = sbus_readw(qpti->qregs + MBOX2);
+ /* Fall through */
case 2: param[1] = sbus_readw(qpti->qregs + MBOX1);
+ /* Fall through */
case 1: param[0] = sbus_readw(qpti->qregs + MBOX0);
}
--
2.22.0
next reply other threads:[~2019-07-29 11:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-29 11:03 Gustavo A. R. Silva [this message]
2019-07-29 15:59 ` [PATCH] scsi: qlogicpti: Mark expected switch fall-throughs Kees Cook
2019-08-08 1:33 ` Martin K. Petersen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190729110345.GA2603@embeddedor \
--to=gustavo@embeddedor.com \
--cc=jejb@linux.ibm.com \
--cc=keescook@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=martin.petersen@oracle.com \
--cc=sfr@canb.auug.org.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.